公开(公告)号：US08868735B2

公开(公告)日：2014-10-21

申请号：US13365122

申请日：2012-02-02

申请人： Wenyi Wang ,  Juiping Liao ,  Rong Wang ,  Duanpei Wu ,  Shih-cheng Yang ,  Jing Hu

发明人： Wenyi Wang ,  Juiping Liao ,  Rong Wang ,  Duanpei Wu ,  Shih-cheng Yang ,  Jing Hu

IPC分类号： G06F15/173

CPC分类号： H04L41/5022 ,  H04L41/145 ,  H04L47/25 ,  H04L69/16

摘要： In one embodiment, a method includes receiving application traffic at a network device from one or more endpoints, measuring performance of applications at the network device, optimizing TCP (Transmission Control Protocol) applications and UDP (User Datagram Protocol) applications based on the measured performance and policy input received at the network device, queuing the application traffic at the network device such that the application traffic shares available bandwidth in accordance with the measured performance and the policy input, and transmitting the application traffic over a wide area network. An apparatus is also disclosed.

摘要翻译： 在一个实施例中，一种方法包括从一个或多个端点在网络设备处接收应用业务，测量网络设备上的应用的性能，基于所测量的性能优化TCP（传输控制协议）应用和UDP（用户数据报协议）应用 以及在网络设备接收到的策略输入，对网络设备上的应用流量进行排队，使得应用流量根据测量的性能和策略输入共享可用带宽，并通过广域网传输应用流量。 还公开了一种装置。

公开(公告)号：US20130205002A1

公开(公告)日：2013-08-08

申请号：US13365122

申请日：2012-02-02

申请人： Wenyi Wang ,  Juiping Liao ,  Rong Wang ,  Duanpei Wu ,  Shih-cheng Yang ,  Jing Hu

发明人： Wenyi Wang ,  Juiping Liao ,  Rong Wang ,  Duanpei Wu ,  Shih-cheng Yang ,  Jing Hu

IPC分类号： G06F15/173

CPC分类号： H04L41/5022 ,  H04L41/145 ,  H04L47/25 ,  H04L69/16

摘要： In one embodiment, a method includes receiving application traffic at a network device from one or more endpoints, measuring performance of applications at the network device, optimizing TCP (Transmission Control Protocol) applications and UDP (User Datagram Protocol) applications based on the measured performance and policy input received at the network device, queuing the application traffic at the network device such that the application traffic shares available bandwidth in accordance with the measured performance and the policy input, and transmitting the application traffic over a wide area network. An apparatus is also disclosed.

摘要翻译： 在一个实施例中，一种方法包括从一个或多个端点在网络设备处接收应用业务，测量网络设备上的应用的性能，基于所测量的性能优化TCP（传输控制协议）应用和UDP（用户数据报协议）应用 以及在网络设备接收到的策略输入，对网络设备上的应用流量进行排队，使得应用流量根据测量的性能和策略输入共享可用带宽，并通过广域网传输应用流量。 还公开了一种装置。

公开(公告)号：US09894397B2

公开(公告)日：2018-02-13

申请号：US13326411

申请日：2011-12-15

申请人： Wenyi Wang ,  Jing Hu ,  Juiping Liao ,  Rong Wang ,  Duanpei Wu ,  Shih-Cheng Stan Yan

发明人： Wenyi Wang ,  Jing Hu ,  Juiping Liao ,  Rong Wang ,  Duanpei Wu ,  Shih-Cheng Stan Yan

IPC分类号： H04N21/2662 ,  H04N21/2343 ,  H04N21/24 ,  H04N21/442 ,  H04N21/6373 ,  H04N21/647 ,  H04N19/146 ,  H04N19/164

CPC分类号： H04N21/2662 ,  H04N19/146 ,  H04N19/164 ,  H04N21/2343 ,  H04N21/2402 ,  H04N21/44209 ,  H04N21/6373 ,  H04N21/64738 ,  H04N21/64792

摘要： In one embodiment, a method includes (a) discerning whether an average packet delay in a media streaming session is increasing or decreasing over a first defined time window, (b) discerning whether an average jitter in the media streaming session is increasing or decreasing over a second defined time window, (c) in response to (a) and (b), calculating a specific bit-rate quantity corresponding to a change in bit-rate, and (d) controlling a bit-rate of the media streaming session in accordance with the specific bit-rate quantity.

公开(公告)号：US20130159495A1

公开(公告)日：2013-06-20

申请号：US13326411

申请日：2011-12-15

申请人： Wenyi Wang ,  Jing Hu ,  Juiping Liao ,  Rong Wang ,  Duanpei Wu ,  Shih-Cheng Stan Yan

发明人： Wenyi Wang ,  Jing Hu ,  Juiping Liao ,  Rong Wang ,  Duanpei Wu ,  Shih-Cheng Stan Yan

IPC分类号： G06F15/173

CPC分类号： H04N21/2662 ,  H04N19/146 ,  H04N19/164 ,  H04N21/2343 ,  H04N21/2402 ,  H04N21/44209 ,  H04N21/6373 ,  H04N21/64738 ,  H04N21/64792

摘要： In one embodiment, a method includes (a) discerning whether an average packet delay in a media streaming session is increasing or decreasing over a first defined time window, (b) discerning whether an average jitter in the media streaming session is increasing or decreasing over a second defined time window, (c) in response to (a) and (b), calculating a specific bit-rate quantity corresponding to a change in bit-rate, and (d) controlling a bit-rate of the media streaming session in accordance with the specific bit-rate quantity.

摘要翻译： 在一个实施例中，一种方法包括（a）辨别媒体流媒体会话中的平均分组延迟是否在第一定义的时间窗口上增加或减少，（b）辨别媒体流媒体会话中的平均抖动是否增加或减少 第二定义的时间窗口，（c）响应于（a）和（b），计算与比特率的变化相对应的特定比特率量，以及（d）控制媒体流会话的比特率 根据具体的比特率数量。

公开(公告)号：US07477282B2

公开(公告)日：2009-01-13

申请号：US11180826

申请日：2005-07-12

申请人： Scott S. Firestone ,  Walter R. Friedrich ,  Nermin M. Ismail ,  Keith A. Lantz ,  Shantanu Sarkar ,  Luke K. Surazski ,  Duanpei Wu

发明人： Scott S. Firestone ,  Walter R. Friedrich ,  Nermin M. Ismail ,  Keith A. Lantz ,  Shantanu Sarkar ,  Luke K. Surazski ,  Duanpei Wu

IPC分类号： H04N7/14 ,  H04M3/42

CPC分类号： H04L65/605 ,  H04L12/1822 ,  H04L65/4046 ,  H04M3/567 ,  H04N7/15 ,  H04N7/152

摘要： A method for executing a video conference is provided that includes receiving one or more audio streams associated with a video conference from one or more end points and determining an active speaker associated with one of the end points. Audio information associated with the active speaker may be received at one or more media switches. One or more video streams may be suppressed except for a selected video stream associated with the active speaker, the selected video stream propagating to one or more of the media switches during the video conference. The selected video stream may be replicated such that it may be communicated to one or more of the end points associated with a selected one of the media switches.

摘要翻译： 提供一种用于执行视频会议的方法，其包括从一个或多个端点接收与视频会议相关联的一个或多个音频流，并且确定与所述终点中的一个相关联的活动扬声器。 可以在一个或多个媒体交换机处接收与主动扬声器相关联的音频信息。 除了与活动扬声器相关联的所选视频流之外，可以抑制一个或多个视频流，所选择的视频流在视频会议期间传播到一个或多个媒体交换机。 可以复制所选择的视频流，使得其可以被传送到与所选择的一个媒体交换机相关联的一个或多个终点。

公开(公告)号：US20070153712A1

公开(公告)日：2007-07-05

申请号：US11327541

申请日：2006-01-05

申请人： Steven Fry ,  Thiyagesan Ramalingam ,  Nermin Ismail ,  Walter Friedrich ,  Duanpei Wu

发明人： Steven Fry ,  Thiyagesan Ramalingam ,  Nermin Ismail ,  Walter Friedrich ,  Duanpei Wu

IPC分类号： H04L12/16

CPC分类号： H04L29/06027 ,  H04L49/355 ,  H04L65/4046 ,  H04L65/607 ,  H04N7/152

摘要： Disclosed are video conferencing systems, devices, architectures, and methods for using media notifications to coordinate switching between video in a distributed arrangement. An exemplary media switch in accordance with embodiments can include: a first interface configured for a first type communication with an endpoint; a second interface configured for the first type communication with another media switch, the second interface being configured to receive a first video stream having a first characteristic and a second video stream having a second characteristic; a third interface configured for a second type communication with a stream controller, the stream controller being configured to provide a notification; and a fourth interface configured for the second type communication with a controlling server, whereby the media switch is configured to re-target an active stream in response to the notification or a difference between the first and second characteristics.

摘要翻译： 公开了用于使用媒体通知来协调分布式布置中的视频之间的切换的视频会议系统，设备，架构和方法。 根据实施例的示例性媒体交换机可以包括：被配置用于与端点进行第一类型通信的第一接口; 第二接口，被配置用于与另一媒体交换机的第一类型通信，所述第二接口被配置为接收具有第一特征的第一视频流和具有第二特征的第二视频流; 配置用于与流控制器的第二类型通信的第三接口，所述流控制器被配置为提供通知; 以及配置用于与控制服务器的第二类型通信的第四接口，由此媒体交换机被配置为响应于该通知或第一和第二特性之间的差异而重新定位活动流。

公开(公告)号：US06826528B1

公开(公告)日：2004-11-30

申请号：US09691878

申请日：2000-10-18

申请人： Duanpei Wu ,  Miyuki Tanaka ,  Xavier Menendez-Pidal

发明人： Duanpei Wu ,  Miyuki Tanaka ,  Xavier Menendez-Pidal

IPC分类号： G10L2102

CPC分类号： G10L21/0208 ,  G10L21/0232 ,  G10L25/18 ,  G10L25/78

摘要： A method for implementing a noise suppressor in a speech recognition system comprises a filter bank for separating source speech data into discrete frequency sub-bands to generate filtered channel energy, and a noise suppressor for weighting the frequency sub-bands to improve the signal-to-noise ratio of the resultant noise-suppressed channel energy. The noise suppressor preferably includes a noise calculator for calculating background noise values, a speech energy calculator for calculating speech energy values for each channel of the filter bank, and a weighting module for applying calculated weighting values to the projected channel energy to generate the noise-suppressed channel energy.

摘要翻译： 一种用于在语音识别系统中实现噪声抑制器的方法包括：滤波器组，用于将源语音数据分离成离散频率子带以产生经滤波的信道能量;以及噪声抑制器，用于对频率子带进行加权以改善信号到 噪声抑制通道能量的噪声比。 噪声抑制器优选地包括用于计算背景噪声值的噪声计算器，用于计算滤波器组的每个通道的语音能量值的语音能量计算器，以及用于将计算的加权值应用于投影的通道能量以产生噪声抑制器的加权模块， 抑制通道能量。

公开(公告)号：US06230122B1

公开(公告)日：2001-05-08

申请号：US09176178

申请日：1998-10-21

申请人： Duanpei Wu ,  Miyuki Tanaka ,  Mariscela Amador-Hernandez

发明人： Duanpei Wu ,  Miyuki Tanaka ,  Mariscela Amador-Hernandez

IPC分类号： G10L2102

CPC分类号： G10L21/0208 ,  G10L21/0232

摘要： A method for effectively suppressing background noise in a speech detection system comprises a filter bank for separating source speech data into discrete frequency sub-bands to generate filtered channel energy, and a noise suppressor for weighting the frequency sub-bands to improve the signal-to-noise ratio of the resultant noise-suppressed channel energy. The noise suppressor preferably includes a subspace module for using a Karhunen-Loeve transformation to create a subspace based on the background noise, a projection module for generating projected channel energy by projecting the filtered channel energy onto the created subspace, and a weighting module for applying calculated weighting values to the projected channel energy to generate the noise-suppressed channel energy.

摘要翻译： 一种用于有效地抑制语音检测系统中的背景噪声的方法包括用于将源语音数据分离成离散频率子带以产生经滤波的信道能量的滤波器组，以及用于对频率子带进行加权以改善信号到 噪声抑制通道能量的噪声比。 噪声抑制器优选地包括用于使用Karhunen-Loeve变换来创建基于背景噪声的子空间的子空间模块，用于通过将滤波的信道能量投影到所创建的子空间上来产生投影通道能量的投影模块，以及用于应用的加权模块 计算加权值到投影通道能量以产生噪声抑制的通道能量。

公开(公告)号：US06216103B1

公开(公告)日：2001-04-10

申请号：US08957875

申请日：1997-10-20

申请人： Duanpei Wu ,  Miyuki Tanaka ,  Ruxin Chen ,  Lex Olorenshaw

发明人： Duanpei Wu ,  Miyuki Tanaka ,  Ruxin Chen ,  Lex Olorenshaw

IPC分类号： G01L300

CPC分类号： G10L25/87 ,  G10L15/20

摘要： A method for implementing a speech recognition system for use during conditions with background noise includes the steps of calculating, in real-time, sequential short-term delta energy parameters for speech energy from a spoken utterance, determining threshold values in the speech energy, and identifying a beginning point and an ending point for the spoken utterance based on the relationship between the threshold values and the short-term delta energy parameters.

摘要翻译： 用于实现在具有背景噪声的条件期间使用的语音识别系统的方法包括以下步骤：实时地从语音话语中计算语音能量的连续短期增量能量参数，确定语音能量中的阈值，以及 基于阈值和短​​期δ能量参数之间的关系来识别口语发音的起始点和终点。

公开(公告)号：US5748843A

公开(公告)日：1998-05-05

申请号：US336290

申请日：1994-11-08

申请人： John C. Peck ,  Randy Rowland ,  Duanpei Wu

发明人： John C. Peck ,  Randy Rowland ,  Duanpei Wu

IPC分类号： D05B19/02 ,  G05B19/042 ,  G10L3/00

CPC分类号： G05B19/042 ,  D05B19/02 ,  G05B2219/23386 ,  G05B2219/25192 ,  G05B2219/2626

摘要： Apparatus and method for speech recognition control of apparel manufacture equipment, such as a sewing machine, is provided. The invention includes a device for recognizing and translating an operator's verbal command into a digital control signal; a communication device such as a microphone for inputting the operator's verbal command into the recognizing and translating device; and interfacing means for presenting the digital control signal to the apparel manufacture equipment in a form recognized and accepted by the equipment. The method for voice control of apparel manufacture equipment according to the present invention comprises the steps of receiving an operator's verbal command; recognizing and translating the verbal command into a digital control signal; and routing this digital control signal to the apparel manufacture equipment in a form recognized by an actable upon by the equipment. An infrared light linkage may be employed to transmit commands from an operator to the machine's control circuitry.

摘要翻译： 提供了诸如缝纫机等服装制造设备的语音识别控制装置和方法。 本发明包括用于将操作者的口头命令识别和翻译成数字控制信号的装置; 诸如麦克风的通信装置，用于将操作者的口头命令输入识别和翻译装置; 以及用于以设备识别和接受的形式向服装制造设备呈现数字控制信号的接口装置。 根据本发明的用于服装制造设备的语音控制的方法包括接收操作者的口头命令的步骤; 将口头命令识别和翻译成数字控制信号; 并将该数字控制信号以由设备可行的形式识别的形式传送到服装制造设备。 可以使用红外光链接来将命令从操作者传送到机器的控制电路。